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Finding the Fourth Proportional to 63,384.93, 87,456.42 and 43,283.67

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Solution

The fourth proportional to 63,384.93, 87,456.42 and 43,283.67 is: 59,721.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,384.93 : 87,456.42 = 43,283.67 : x
  2. Step 2: Convert to fraction form
    63,384.93/87,456.42 = 43,283.67/x
  3. Step 3: Cross multiply
    63,384.93x = 87,456.42 × 43,283.67
  4. Step 4: Simplify right side
    63,384.93x = 3,785,434,822.66
  5. Step 5: Solve for x
    x = 3,785,434,822.66/63,384.93
  6. Step 6: Final answer
    x = 59,721.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.